After I opened a new tor window, I tried to do a google search. After I hit enter, google gave me what seems to be an infinitely long CAPTCHA.
I am running Version 0.55.6 Chromium: 70.0.3538.16 (Official Build) dev (64-bit)
PS: Even though it is stated that Duckduckgo is the default browser in Tor mode, the address bar browser is still Google.